Poorly pony

[Laura-Maybe-IV]

So I checked on my welsh section A this morning and he's got quiet bad diarrhoea, its started over the past few days just a little bit and its gotten worse. He's stabled at night with my Shetland and the Shetland is fine as is my big horse.
He's not had any new feed or been wormed for 12 weeks, I've noticed his coat is turning dull, but his personality is still the same.

What do you guys think possible worm burden? I am going to get some strongid p and double does him on it to make sure, there's no worms in his poo, unless he's got some kind of virus I can't work out what is wrong with him?

 

[Sparkles]

Collitis possibly? Though he'd be possibly more poorly but if it's getting worse I'd stay off the worming and get the vets opinion...

 

[Laura-Maybe-IV]

Collitis possibly? Though he'd be possibly more poorly but if it's getting worse I'd stay off the worming and get the vets opinion...

Yeah it's strange as he's not off his food and he's not really poorly as such, just got a bad case of diarrhoea. Worm burden is the only other thing I could think and he has lost a bit of weight not that it will do him any harm
I am going to ring the vet and get some advice I think and see what they suggest.